Root Canal Sealing Ability of Bioactive Glass-based Sealer and Its Effects on Dentin

• Shinji YOSHII

  Division of Endodontics and Restorative Dentistry, Department of Science of Oral Functions, Kyushu Dental University

• Ayako WASHIO

  Division of Endodontics and Restorative Dentistry, Department of Science of Oral Functions, Kyushu Dental University

• Takahiko MOROTOMI

  Division of Endodontics and Restorative Dentistry, Department of Science of Oral Functions, Kyushu Dental University

• Chiaki KITAMURA

  Division of Endodontics and Restorative Dentistry, Department of Science of Oral Functions, Kyushu Dental University

Bibliographic Information

Other Title

• バイオガラス配合シーラーの根管封鎖性と象牙質への影響

Abstract

 Purpose: Root canal filling sealer requires good operability, root canal sealing ability, and high biocompatibility with periapical tissue. However, at present, there are no sealers that satisfy these requirements. A sealer showing ideal physico-chemical characteristics and biocompatibility as a biological material, to induce proper wound healing of the periapical tissue after root canal treatment, needs to be developed. In this study, we examined the sealing abilities of a newly developed bioactive glass-based sealer (BG-based sealer) and existing sealers, and their effects on root canal dentin.  Methods: After filling human extracted teeth by each sealer (eugenol-based, non-eugenol-based, bioceramic-based, and BG-based sealer), the sealing ability of each sealer was examined by the dye leakage test, and the sealer/dentin interface was analyzed by FE-SEM and EDX.  Results: The amount of dye leakage of BG-based sealer was significantly less than those of the other sealers. FE-SEM analysis of the BG-based sealer and bioceramic-based sealer showed the formation of hydroxyapatite-like crystals in the dentinal tubules.  Conclusion: The root canal sealing ability of BG-based sealer may result from the formation of hydroxyapatite-like crystals in the dentinal tubules, suggesting that BG-based sealer may be useful as a root canal filling sealer.

Journal

• The Japanese Journal of Conservative Dentistry

  The Japanese Journal of Conservative Dentistry 59 (6), 463-471, 2016

  The Japanese Society of Conservative Dentistry

Keywords

• root canal filling sealer
• bioactive glass
• root canal sealing ability
• hydroxyapatite-like crystals
• tag-like structure

Details

• CRID: 1390001205520885632
• NII Article ID: 130005239820
• DOI: 10.11471/shikahozon.59.463
• ISSN: 21880808
• ISSN: 03872343
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed